Examples with SelectBuilder org.apache.jena.arq.querybuilder.SelectBuilder used on opensource projects

Example 6 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereHandlerTest method testAddUnionOfOne.

@Test
public void testAddUnionOfOne() {
    Triple t1 = new Triple(NodeFactory.createURI("one"), NodeFactory.createURI("two"), NodeFactory.createURI("three"));
    SelectBuilder sb = new SelectBuilder().addWhere(t1);
    handler.addUnion(sb);
    handler.build();
    ElementPathBlock epb1 = new ElementPathBlock();
    epb1.addTriple(t1);
    WhereValidator visitor = new WhereValidator(epb1);
    handler.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 7 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereClauseTest method testAddSubQuery.

@ContractTest
public void testAddSubQuery() {
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "urn:uri:").addVar("?x").addWhere("pfx:one", "pfx:two", "pfx:three");
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addSubQuery(sb);
    Query query = builder.build();
    Query q2 = new Query();
    q2.setQuerySelectType();
    q2.addProjectVars(Arrays.asList(Var.alloc("x")));
    ElementPathBlock epb = new ElementPathBlock();
    q2.setQueryPattern(epb);
    epb.addTriplePath(new TriplePath(new Triple(NodeFactory.createURI("urn:uri:one"), NodeFactory.createURI("urn:uri:two"), NodeFactory.createURI("urn:uri:three"))));
    ElementSubQuery esq = new ElementSubQuery(q2);
    WhereValidator visitor = new WhereValidator(esq);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 8 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereClauseTest method testSetVarsInUnion_Node_Variable.

@ContractTest
public void testSetVarsInUnion_Node_Variable() {
    Node v = NodeFactory.createVariable("v");
    SelectBuilder sb1 = new SelectBuilder().addPrefix("pfx", "uri").addWhere("<one>", "<two>", v);
    WhereClause<?> whereClause = getProducer().newInstance();
    whereClause.addUnion(sb1);
    SelectBuilder sb2 = new SelectBuilder().addWhere("<uno>", "<dos>", "<tres>");
    AbstractQueryBuilder<?> builder = whereClause.addUnion(sb2);
    Query query = builder.build();
    Node one = NodeFactory.createURI("one");
    Node two = NodeFactory.createURI("two");
    Node three = NodeFactory.createURI("three");
    Node uno = NodeFactory.createURI("uno");
    Node dos = NodeFactory.createURI("dos");
    Node tres = NodeFactory.createURI("tres");
    ElementUnion union = new ElementUnion();
    ElementPathBlock epb = new ElementPathBlock();
    Triple t = new Triple(one, two, Var.alloc(v));
    epb.addTriple(t);
    union.addElement(epb);
    ElementPathBlock epb2 = new ElementPathBlock();
    t = new Triple(uno, dos, tres);
    epb2.addTriple(t);
    union.addElement(epb2);
    WhereValidator visitor = new WhereValidator(union);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
    builder.setVar(v, NodeFactory.createURI("three"));
    query = builder.build();
    union = new ElementUnion();
    epb = new ElementPathBlock();
    t = new Triple(one, two, three);
    epb.addTriple(t);
    union.addElement(epb);
    epb2 = new ElementPathBlock();
    t = new Triple(uno, dos, tres);
    epb2.addTriple(t);
    union.addElement(epb2);
    visitor = new WhereValidator(union);
    query.getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 9 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereClauseTest method testAddOptionalGroupPattern_VariableNode.

@ContractTest
public void testAddOptionalGroupPattern_VariableNode() {
    Node s = NodeFactory.createVariable("s");
    Node q = NodeFactory.createURI("urn:q");
    Node v = NodeFactory.createURI("urn:v");
    Var x = Var.alloc("x");
    Node n123 = NodeFactory.createLiteral(LiteralLabelFactory.createTypedLiteral(123));
    SelectBuilder pattern = new SelectBuilder();
    pattern.addWhere(new Triple(s, q, n123));
    pattern.addWhere(new Triple(s, v, x));
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addOptional(pattern);
    ElementPathBlock epb = new ElementPathBlock();
    ElementOptional optional = new ElementOptional(epb);
    TriplePath tp = new TriplePath(new Triple(Var.alloc(s), q, n123));
    epb.addTriplePath(tp);
    tp = new TriplePath(new Triple(Var.alloc(s), v, x));
    epb.addTriplePath(tp);
    WhereValidator visitor = new WhereValidator(optional);
    builder.build().getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}

Example 10 with SelectBuilder

use of org.apache.jena.arq.querybuilder.SelectBuilder in project jena by apache.

the class WhereClauseTest method testSetVarsInSubQuery_Node_Variable.

@ContractTest
public void testSetVarsInSubQuery_Node_Variable() {
    Node v = NodeFactory.createVariable("v");
    SelectBuilder sb = new SelectBuilder();
    sb.addPrefix("pfx", "uri").addWhere("<one>", "<two>", v);
    WhereClause<?> whereClause = getProducer().newInstance();
    AbstractQueryBuilder<?> builder = whereClause.addSubQuery(sb);
    Query subQuery = new Query();
    subQuery.setQuerySelectType();
    subQuery.setQueryResultStar(true);
    ElementSubQuery esq = new ElementSubQuery(subQuery);
    ElementPathBlock epb = new ElementPathBlock();
    subQuery.setQueryPattern(epb);
    TriplePath tp = new TriplePath(NodeFactory.createURI("one"), new P_Link(NodeFactory.createURI("two")), NodeFactory.createVariable("v"));
    epb.addTriple(tp);
    WhereValidator visitor = new WhereValidator(esq);
    builder.build().getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
    builder.setVar(v, NodeFactory.createURI("three"));
    subQuery = new Query();
    subQuery.setQuerySelectType();
    subQuery.setQueryResultStar(true);
    esq = new ElementSubQuery(subQuery);
    epb = new ElementPathBlock();
    subQuery.setQueryPattern(epb);
    tp = new TriplePath(NodeFactory.createURI("one"), new P_Link(NodeFactory.createURI("two")), NodeFactory.createURI("three"));
    epb.addTriple(tp);
    visitor = new WhereValidator(esq);
    builder.build().getQueryPattern().visit(visitor);
    assertTrue(visitor.matching);
}